Mention.com”s Success Stories section uses this great phrase to introduce the Proof in the drip pan at the bottom of the page.

"They also started with a free trial." Short and persuasive copy that makes an otherwise common CTA more compelling.

1. Intro text, subdued company logos for the proof (so as not to compete with the CTA), and bold red call to action button to create your first alert and start a free trial.

https://en.mention.com/success-stories